Global Patent Index - EP 0908685 A3

EP 0908685 A3 2001-05-09 - Fluid heater

Title (en)

Fluid heater

Title (de)

Vorrichtung zum Erwärmen einer Flüssigkeit

Title (fr)

Réchauffeur de fluide

Publication

EP 0908685 A3 (DE)

Application

EP 98119017 A

Priority

DE 19744478 A

Abstract (en)

[origin: EP0908685A2] Flue gases are introduced into water via a diving bell submerged in the top region of the vessel. A heat exchanger is linked to different heights in the vessel wall. Water (4) is heated inside a non-pressurised vessel (2) which contains an immersed diving bell (6). Liquid fuel is burnt inside a combustion chamber (8) and flue gases exit the burner (10) to enter the diving bell and then leave through an exit region (12) of the diving bell to enter the water, resulting in it being directly heated. A distributor plate (14) is provided at the diving bell exit to ensure good distribution of flue gases in the water. The diving bell is immersed only in the top region of the liquid so that layers of water with different temperature are formed. A heat exchanger (24) is connected to the vessel wall at different heights corresponding to different temperature layers. Useful heat is effectively recovered from flue gases.

IPC 1-7 (main, further and additional classification)

F24H 1/10

IPC 8 full level (invention and additional information)

F24H 1/10 (2006.01)

CPC (invention and additional information)

F24H 1/107 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0908685 A2 19990414; EP 0908685 A3 20010509; DE 19744478 C1 19990617

INPADOC legal status


2002-08-28 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011110

2002-03-14 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-01-30 [AKX] PAYMENT OF DESIGNATION FEES

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-05-09 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1999-04-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1999-04-14 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI